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Service diagnosis

43

Domestic air conditioner

10.3.10 The communication fault between indoor and outdoor

Indoor display

ƵƵƾ

E07

outdoor display

LED1 flash 15 times

Method of

Communication is detected by checking the indoor PCB and the outdoor PCB.

Malfunction

Detection

Malfunction

■ The outdoor PCB broken leads to communication fault.

Decision

■ The indoor PCB broken leads to communication fault.

Conditions

Supposed

■ Communication wiring disconnected.

Causes

■ The indoor PCB is broken.

■ The outdoor PCB is broken.

■ The Module PCB is broken.

Troubleshooting

* Caution Be sure to turn off power switch before connect or disconnect connector, or else

parts damage may be occurred.

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Содержание 1U18REJFRA

Страница 1: ...ential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or Repair the product or products dealt with in this service information by anyone else could result in serious injury or death WARNING 2019 Qingdao Haier Air Conditioner General corp Ltd All rights reserved Unauthorize...

Страница 2: ...ns 7 3 Sensors list 8 4 Piping diagrams 9 5 Operation range 10 6 Printed circuit board connector wiring diagram 11 7 Functions and control 8 Dimensional drawings 9 Center of gravity 10 Service diagnosis 11 Performance and curves diagrams 12 Circuit diagrams 15 48 30 29 29 56 ...

Страница 3: ...me explanation 1 U 1 8 R E J F A R The maximum combination number Type of outdoor unit U normal type Nominal cooling capacity 18000BTU h Platform of outdoor units 2p 2p platform Europe Version number Heat pump R32 refrigerant DC inverter Apply toT1 220 240V50HZ 1ph 1 ...

Страница 4: ...et before disassembling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits do not touch any electrically charged sections of the equipment If the refrigerant gas discharges during the repair work do not touch the discharging refrige...

Страница 5: ...e welder in an enclosed room can cause oxygen deficiency 1 2 2 Cautions Regarding Products after Repair Warning Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropriate parts or tools can cause an electrical shock excessive heat generation or fire When relocating the equ...

Страница 6: ...s other than the specified refrigerant R 410A R22 in the refrigerant system If air enters the cooling system an excessively high pressure results causing equipment damage and injury If the refrigerant gas leaks be sure to locate the leak and repair it before charging the refrigerant After charging refrigerant make sure that there is no refrigerant leak If the leak cannot be located and the repair ...

Страница 7: ...operly and if the connections at the soldered or crimped terminals are secure Improper installation and connections can cause excessive heat generation fire or an electrical shock If the installation platform or frame has corroded replace it Corroded installation platform or frame can cause the unit to fall resulting in injury Check the grounding and repair it if the equipment is not properly grou...

Страница 8: ...cks Caution Caution A caution is used when there is danger that the reader through incorrect manipulation may damage equipment loose data get an unexpected result or has to restart part of a procedure Warning Warning A warning is used when there is danger of personal injury Reference A reference guides the reader to other places in this binder or in this manual where he she will find additional in...

Страница 9: ...G Sound level 48 e r u s s e e p d n u o S 63 B d r e w o p d n u o S ELECTRICAL SPECIFICATIONS g n i t a e h g n i l o o c 6 7 6 2 A t n e r r u c g n i n n u r l a n i m o N Maximum running current A 9 8 13 0 1 1 0 A t n e r r u c g n i t r a t S TECHNICAL SPECIFICATIONS PARTS g n i t a e h g n i l o o c Compressor r o s s e r p m o C y r a t o R e p y T SVB140FCAMC l e d o M 975 W t u p t u o r...

Страница 10: ...al Protection degree IP X4 8 EEV Note the data are based on the conditions shown in the table below h t g n e l g n i p i P g n i t a e h g n i l o o c Indoor 27 DB 19 WB Outdoor 35 DB 24 WB Indoor 20 DB Outdoor 7 DB 6 WB 5m 3 Sensors list Its used for detecting suction pipe temperature of compressor to adjust gas flowing type Description Qty Ambient sensor Its used for detecti e d i s r o o d t u...

Страница 11: ...Pinping diagrams Domestic air conditioner 4ˊPiping diagrams 9 EEV EEV ...

Страница 12: ...Operation range Domestic air conditioner 5 Operation range 10 10 0 21 27 35 20 40 60 43 20 40 ...

Страница 13: ...ontrol board and the module board 9 CN25 CN27 Connector to N and P of the module board 10 CN4 Connector for communicate between indoor and outdoor unit 11 CN16 Connector for electric expansion valves PCB 2 Module PCB For 1U18JEFFRA 1U24REFFRA 1U24REBFRA CN10 Connector for the DC power 5V and 15V form the control PCB CN11 Connector for communicating between the control board and the module board P ...

Страница 14: ...Printed circuit board connector wiring diagram 12 Domestic air conditioner PCB 1 CN1 CN2 CN4 CN27 CN26 CN25 CN24 CN23 CN22 CN21 CN18 CN20 CN16 CN10 CN9 CN3 ...

Страница 15: ...Printed circuit board connector wiring diagram 13 Domestic air conditioner PCB 2 CN4 CN3 CN10 CN6 CN5 CN8 CN11 CN9 CN7 CN1 CN2 ...

Страница 16: ...E C A P A C I T O R R E T A I N S H I G H V O LT A G E E V E N A F T E R T H E P LU G O F F F O R Y O U R S A F E T Y B E S U R E T O W A I T A T LE A S T 5 M I N U T E S A F T E R P LU G O F F A N D U S E A T E S T E R T O C O N F I R M T H E V O LT A G E B E T W E E N C O N N E C T O R C N 24 A N D C N 26 O N M A I N P C B B O A R D I S LE S S T H A N D C 1 0 V B E F O R E S T A R T S E R V I C ...

Страница 17: ...d every determined frequency for protection should be prior to the calculated frequency 7 1 1 3 The speeds of increasing or decreasing the frequency of the compressor The speed of increasing or decreasing the frequency rapidly 1 1HZ second The speed of increasing or decreasing the frequency slowly 2 1HZ 10seconds 7 1 1 4 The calculation of the compressor s frequency Refrigeration dehumidification ...

Страница 18: ...f the complete appliance which are affected by the environment but also the maximum ability limitation of the system When the starting ability is not the maximum its maximum frequency limitation is calculated by the following equations The frequency limitation which is affected by the temperature and under the condition of actual ability the actual running system ability the maximum frequency whic...

Страница 19: ... controled according to the ambient temperature Tao ć Tao 22ć 22ć Tao 28ć Taoı29ć Refrigeration dehumidification 18K 24K 2nd level 2nd level 3rd level 4th level 5th level 6th level Tao ć Tao 10ć 10ć Tao 17ć Taoı17ć Heating 5th level 6th level 3th level 5th level 3rd level 2nd level After 3 minutes the compressor is controled according to the ambient temperature and the frequency of the compressor ...

Страница 20: ... no such limitation Sensor detection methods 100 times one cycle of procedure run is one time and about 5ms detection method for each time continuously sampling for 8 times then order them and take the mean value of the middle 2 values take the mean value TTC ć 18K 24K Abnormal stop 110 110 Decreasing the frequency rapidly 1HZ second 107 105 Decreasing the frequency slowly 1HZ 10seconds 102 100 Th...

Страница 21: ...compressor if the AC current is greater than 14 5A 15A 18K 24K the frequency of the compressor decreases at the speed of 1HZ second ƽDuring the starting process of the compressor if the AC current is greater than 13 5A 14A 18K 24K the frequency of the compressor decreases at the speed of 0 1HZ second ƽDuring the starting process of the compressor if the AC current is greater than 13A 13A 18K 24K t...

Страница 22: ...ing heating prevent freezing Tpg_indoor is the minimum value of the effective indoor unit start it and it is in accord with the running state 11ć ice_temp_3 5 ice_temp_3 3 9ć Increasing slowly 8ć ice_temp_3 2 Keeping the frequency ice_temp_3 7ć 7ć ice_temp_2 5ć Decreasing slowly ice_temp_1 3ć Decreasing rapidly ice_temp_1 1ć Stop When Tpg_indoorǇ ice_temp_1 the frequency of the compressor decrease...

Страница 23: ... 3700K 3 Temp Max K Normal K Min K Tolerance 30 165 2170 147 9497 132 3678 1 94 1 75 29 155 5754 139 5600 125 0806 1 93 1 74 28 146 5609 131 7022 118 2434 1 91 1 73 27 138 1285 124 3392 111 8256 1 89 1 71 26 130 2371 117 4366 105 7989 1 87 1 70 25 122 8484 110 9627 100 1367 1 85 1 69 24 115 9272 104 8882 94 8149 1 83 1 67 23 109 4410 99 1858 89 8106 1 81 1 66 22 103 3598 93 8305 85 1031 1 80 1 64 ...

Страница 24: ...315 0 98 0 96 16 15 2385 14 6268 14 0271 0 96 0 94 17 14 5748 14 0079 13 4510 0 93 0 92 18 13 9436 13 4185 12 9017 0 91 0 90 19 13 3431 12 8572 12 3778 0 88 0 87 20 12 7718 12 3223 11 8780 0 86 0 85 21 12 2280 11 8126 11 4011 0 83 0 83 22 11 7102 11 3267 10 9459 0 81 0 80 23 11 2172 10 8634 10 5114 0 78 0 78 24 10 7475 10 4216 10 0964 0 75 0 75 25 10 3000 10 0000 9 7000 0 75 0 75 26 9 8975 9 5974 ...

Страница 25: ...4 1 93 59 2 9909 2 7948 2 6092 2 08 1 97 60 2 8936 2 7012 2 5193 2 13 2 01 61 2 8000 2 6112 2 4328 2 17 2 05 62 2 7099 2 5246 2 3498 2 22 2 09 63 2 6232 2 4413 2 2700 2 26 2 13 64 2 5396 2 3611 2 1932 2 31 2 17 65 2 4591 2 2840 2 1195 2 36 2 21 66 2 3815 2 2098 2 0486 2 40 2 25 67 2 3068 2 1383 1 9803 2 45 2 29 68 2 2347 2 0695 1 9147 2 49 2 34 69 2 1652 2 0032 1 8516 2 54 2 38 70 2 0983 1 9393 1 ...

Страница 26: ...1 0 8507 0 7646 0 6867 4 18 3 78 102 0 8281 0 7436 0 6672 4 23 3 83 103 0 8061 0 7233 0 6484 4 29 3 88 104 0 7848 0 7036 0 6303 4 34 3 92 105 0 7641 0 6845 0 6127 4 40 3 97 106 0 7441 0 6661 0 5957 4 46 4 02 107 0 7247 0 6482 0 5792 4 51 4 07 108 0 7059 0 6308 0 5632 4 57 4 12 109 0 6877 0 6140 0 5478 4 63 4 16 110 0 6700 0 5977 0 5328 4 69 4 21 111 0 6528 0 5820 0 5183 4 74 4 26 112 0 6361 0 5667...

Страница 27: ...5548 3573 4260 3049 5312 2 70 2 32 10 3933 3289 3365 7336 2877 4527 2 69 2 31 9 3699 5139 3171 3148 2716 0828 2 67 2 30 8 3480 9407 2989 2460 2564 6945 2 66 2 29 7 3276 5302 2818 6731 2422 6139 2 64 2 28 6 3085 2854 2658 8058 2289 2164 2 63 2 28 5 2906 2851 2508 9126 2163 9230 2 61 2 27 4 2738 6777 2368 3158 2046 1961 2 60 2 26 3 2581 6752 2236 3876 1935 5371 2 58 2 25 2 2434 5487 2112 5459 1831 4...

Страница 28: ...6 1295 334 5542 1 95 1 80 33 381 5350 349 4341 319 7460 1 93 1 78 34 363 7176 333 5801 305 6645 1 90 1 76 35 346 8176 318 5216 292 2709 1 88 1 75 36 330 7839 304 2151 279 5286 1 86 1 73 37 315 5682 290 6199 267 4031 1 84 1 71 38 301 1254 277 6976 255 8620 1 82 1 70 39 287 4128 265 4119 244 8745 1 80 1 68 40 274 3905 253 7288 234 4118 1 78 1 66 41 262 0206 242 6161 224 4465 1 76 1 64 42 250 2676 23...

Страница 29: ...0 96 75 62 3423 60 1906 58 0609 0 95 0 94 76 59 9821 57 9770 55 9885 0 92 0 92 77 57 7223 55 8552 53 9998 0 90 0 89 78 55 5583 53 8210 52 0912 0 87 0 87 79 53 4856 51 8706 50 2591 0 85 0 84 80 51 5000 50 0000 48 5000 0 85 0 84 81 49 7063 48 2057 46 7083 0 85 0 85 82 47 9835 46 4842 44 9911 0 89 0 89 83 46 3286 44 8323 43 3452 0 93 0 92 84 44 7385 43 2468 41 7672 0 96 0 95 85 43 2105 41 7248 40 254...

Страница 30: ...2 23 2 12 117 15 4489 14 4506 13 5047 2 27 2 16 118 14 9968 14 0149 13 0855 2 32 2 19 119 14 5599 13 5942 12 6811 2 36 2 23 120 14 1376 13 1879 12 2909 2 41 2 27 121 13 7294 12 7955 11 9144 2 45 2 31 122 13 3347 12 4165 11 5510 2 50 2 35 123 12 9531 12 0503 11 2003 2 54 2 39 124 12 5840 11 6965 10 8617 2 58 2 43 125 12 2270 11 3545 10 5348 2 63 2 47 126 11 8817 11 0240 10 2191 2 68 2 51 127 11 547...

Страница 31: ...Dimensinal drawings Domestic air conditioner 8 Dimensional drawings 9 Center of gravity 29 890 988 697 353 353 890 12 7 3 4 890 288 697 374 353 132 unit mm unit mm ...

Страница 32: ...sion error occurs between the indoor and outdoor units In either case conduct the diagnostic procedure described in the following pages Parameter of primary electronic appliance e r u t c i p r e t e m a r a p e m a n Compressor Rated voltage 220 230V Rated current 4 8A Rated frequency 50 60HZ Fan motor Rated voltage 220 230V Rated current 0 2A Rated frequency 50 60HZ Reactor Rated voltage 220 230...

Страница 33: ...ipment operates but does not cool or does not heat only for heat pump Check for faulty operation of the electronic expansion valve Set the units to cooling operation and compare the temperatures of the liquid side connection pipes of the connection section among rooms to check the opening and closing operation of the electronic expansion valves of the individual units Diagnosis by service port pre...

Страница 34: ...Outdoor EEPROM error Page 34 F01 ƶ ƾ ƾ 2 The protection of IPM Page 38 F22 ƾ ƾ Ƶ 3 Overcurrent protection of AC electricity for the outdoor model Page 39 F03 Ƶ ƾ Ƶ 4 Communication fault between the IPM and outdoor PCB Page 40 F19 Ƶ ƾ ƶ 6 Power voltage is too high or low Page 41 F04 Ƶ ƾ Ƶ 8 Overheat protection for Discharge temperature Page 42 F21 ƶ ƶ ƾ 10 Defrost temperature sensor failure Page 33...

Страница 35: ...r input is more than 4 92V or less than 0 08V during compressor Decision operation Conditions Note The values vary slightly in some models Supposed Faulty connector connection Causes Faulty thermistor Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Thermistor resistance check method Remove the connector...

Страница 36: ... The Data detected by the EEPROM are used to determine MCU Malfunction Detection Malfunction When the data of EEPROM is error or the EEPROM is damaged Decision Conditions Supposed Faulty EEPROM data Causes Faulty EEPROM Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Replace the indoor or outdoor mainboard ...

Страница 37: ...ires Detection error due to faulty indoor unit PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Check whether terminals on indoor pcb is well Pull out the terminals on the indoor mainboard and reinsert them Turn off power switch and pull out the fan motor Measure the resistances between balck line 0V and white ...

Страница 38: ...ning condition and so on Malfunction Detection Malfunction when the data of EEPROM is error or the EEPROM is damaged Decision Conditions Supposed Causes Ƶ DC fan motor protection dues to the DC fan motor faulty Ƶ DC fan motor protection dues to faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred ...

Страница 39: ...Service diagnosis 37 Domestic air conditioner ...

Страница 40: ...eads to IPM protection due to over current Decision The compressor faulty leads to IPM protection Conditions circuit component of IPM is broken and led to IPM protection Supposed IPM protection dues to the compressor faulty Causes IPM protection dues to faulty PCB of IPM module Compressor wiring disconnected Troubleshooting Caution Be sure to turn off power switch before connect or disconnect conn...

Страница 41: ...ly Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Electrify the machine again and turn it on with the remote controller If malfunctions are reported before or upon the compressor being started up IPM Module is damaged and needs replacing Repair the power supply The system may have been over or under charged with gas w...

Страница 42: ...nnected Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred 1 Check whether Terminal CN23 and CN24 on the outdoor mainboard CN10 and CN11 on IPM module 2 Check whether the connected wire between IPM and outdoor Are they good Electrify the machine again and turn it on Check whether the voltage between 1 and 2 of Termin...

Страница 43: ... Supply voltage not as specified Causes the IPM module is broken the outdoor PCB is broken Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Electrify the machine again and turn it on with the remote controller Check whether the compressor is started normally Is it ok Yes Maybe there is some disturbance NO No 230 is...

Страница 44: ...ccurred Electrify the machine again and turn it on with the remote controller then measure the temperature at the exhaust temperature sensor of the compressor on the outdoor unit The temperature exceeds 110 ć shortly after the machine starts up 1 The cryogen may have been leaked during installation or there may be leakage in the piping system 2 There may be other causes to make the exhaust tempera...

Страница 45: ...d the outdoor PCB Malfunction Detection Malfunction The outdoor PCB broken leads to communication fault Decision The indoor PCB broken leads to communication fault Conditions Supposed Communication wiring disconnected Causes The indoor PCB is broken The outdoor PCB is broken The Module PCB is broken Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or ...

Страница 46: ...Service diagnosis 44 Domestic air conditioner ...

Страница 47: ...mpressor Ƶ Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Within 3 minutes after the machine is supplied with power and turned on with the remote controller check whether the compressor can start up 1 The wiring of compressor is incorrect or the connection is poor 2 The compressor is damaged At first the co...

Страница 48: ... Dirty heat exchanger Ƶ Faulty heat exchange sensor Ƶ Insufficient gas Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Electrify the machine again and turn it on with the remote controller check whether the wind temperature is below 65ć The malfunction is reported after the machine has run for some time 1 ǃ Check ...

Страница 49: ...5 5054 4992 4888 4732 4530 4264 4056 3848 22 16 5262 5200 5096 4867 4680 4420 4264 4104 25 18 5574 5512 5408 5117 4940 4784 4551 4326 27 19 5928 5824 5595 5450 5200 4992 4763 4576 30 22 6157 6094 5928 5678 5564 5356 5200 5013 32 23 6302 6178 6032 5886 5720 5512 5408 5304 32 24 6417 6344 6240 6136 5980 5782 5616 5429 outdoor temp humidity 46 cooling value temerature table performance curves 1500 20...

Страница 50: ... 1486 22 16 1125 1173 1216 1274 1337 1413 1471 1514 25 18 1168 1201 1234 1302 1362 1450 1503 1551 27 19 1206 1236 1281 1345 1400 1488 1564 1602 30 22 1234 1274 1317 1375 1438 1551 1640 1695 32 23 1269 1312 1377 1413 1476 1589 1665 1751 32 24 1312 1352 1387 1443 1514 1627 1730 1816 outdoor temp humidity 46 power consumption value temp table performance curves 600 800 1000 1200 1400 1600 1800 2000 p...

Страница 51: ...humidity 46 DB WB 16 19 22 15 2306 2508 2589 25 2331 2463 2574 30 2704 2876 2947 35 3017 3143 3224 40 3328 3409 3500 45 3682 3853 3894 performance curves cooling discharge pressure table indoor temp 1500 2000 2500 3000 3500 4000 15 25 30 35 40 45 DISCHARGE PRESSURE Outdoor Temp COOLING DISCHARGE PRESSURE 16 19 22 ...

Страница 52: ...on pressure curves 51 outdoor temp humidity 46 DB WB 16 19 22 15 787 875 887 25 816 895 899 30 819 900 898 35 829 903 919 40 867 945 961 45 895 977 992 performance curves cooling suction pressure table indoor temp 400 500 600 700 800 900 1000 1100 DB WB 15 25 30 35 40 16 19 22 ...

Страница 53: ...3 5 6222 5667 5067 7 6 6844 6000 5467 15 6422 5933 5244 20 5333 4933 4356 25 3600 3407 3178 indoor temp humidity 46 heating capacity and indoor outdoor temp table performance curves 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 1 2 6 7 conoling capacity w 3 4 5 outdoor tempe DB WB heating capacity and indoor outdoor temp curves 15 C 20 C 25 C ...

Страница 54: ...s 53 outdoor temp DB WB 15 20 25 15 976 1049 1139 5 1195 1276 1356 5 1307 1439 1510 7 6 1366 1500 1634 15 1390 1512 1671 20 1195 1283 1390 25 961 1037 1146 indoor temp humidity 46 power consumption value temp table performance curves 0 200 400 600 800 1000 1200 1400 1600 1800 2000 DB WB 15 5 5 7 6 15 20 15 20 25 ...

Страница 55: ...20 25 15 2206 2374 2539 10 2272 2463 2685 5 2527 2643 2852 0 2493 2663 2864 5 2452 2833 2958 10 2820 3165 3470 15 3119 3502 3870 20 3160 3633 3987 performance curves Heating discharge pressure table indoor temp 1500 2000 2500 3000 3500 4000 4500 15 10 5 10 15 20 DISCHARGE PRESSURE 0 5 Outdoor Temp HEATING DISCHARGE PRESSURE 15 20 25 ...

Страница 56: ...955 980 997 10 992 1020 1034 5 1014 1027 1059 0 1042 1067 1078 5 1072 1093 1122 10 1099 1112 1146 15 1115 1126 1159 1065 20 1143 1170 1193 1093 performance curves heating suction pressure table indoor temp 500 600 700 800 900 1000 1100 1200 1300 1400 1500 15 10 5 0 5 10 15 20 DISCHARGE PRESSURE Outdoor Temp HEATING SUCTION PRESSURE 15 20 25 ...

Страница 57: ... VS P 1 22 PG B AC K 330 0805 R 38 2SC 2412K N1 5V 1K 0805 R 34 1K 0805 R 35 1K 0805 R 36 10nF C 15 2 2K 0805 R 33 47UF 25V 105 E9 1 2 3 4 5 6 B 5P6 VH W 白色立式 C N21 330 0805 R 37 330 1W R 13 1K R 41 1 64 C OMM R X 1 63 C OMM TX 1 64 C OMM R X 1 63 C OMM TX 4 7K R 11 2SC 2412K N2 330 0805 R 43 4 3 1 2 IC 11 PC 851 TLP628 1N 4007 D3 1N4007 D1 1N4007 D4 1N4007 D2 220K 1 4W R 4 220K 1 4W R 5 220K 1 4...

Страница 58: ... 5 6 6 1971798 白色立式 C N20 1 2 3 4 5 6 6 1971798 3 红色立式 C N16 除霜环温 5V 1 18 SC L 1 17 SDA EEPROM 5V 560 0805 R 24 1 2 3 4 TJC 25025 4A 原色立式 C N28 A0 1 A1 2 A2 3 GND 4 SDA 5 SC L 6 W P 7 VC C 8 M24C 04 IC 6 STEP A STEP B STEP C STEP D PTC 12V 1B 1 2B 2 3B 3 4B 4 5B 5 6B 6 7B 7 E 8 C OM 9 7C 10 6C 11 5C 12 4C 13 3C 14 2C 15 1C 16 IC 7 ULN2003 FAN1 0 1uF C 12 0 1uF C 13 0 1uF C 19 0 1uF C 23 0 1uF ...

Страница 59: ...ams Domestic air conditioner Sincere Forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China_ Http www haier com Edited by Signed by Approved by Shi Haiyan Yang Xiaodong Yang Wenjun Wu Hongjin ...

Страница 60: ...by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or Repair the product or products dealt with in this service information by anyone else could result in serious injury or death WARNING 2019 Qingdao Haier Air Conditioner General corp Ltd All rights reserved Unauthorized copying and distribution is a violation of law Haier Group Versio...

Страница 61: ...val of Outdoor panel Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work s t n i o P e r u d e c o r P p e t S s l e n a p e h t e v o m e R 1 1 Loosen the screws and lift the top panel and remove the handle ...

Страница 62: ...e r u d e c o r p f o l a v o m e R 2 Domestic air conditioner s t n i o P e r u d e c o r P p e t S 2 Loosen the screws of the panel pull and remove the front panel ...

Страница 63: ...r conditioner 2 Removal of Electrical Box Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the fixing screws Than lift the electrical box ...

Страница 64: ...Removal Procedure 3 Removal of Fan and Fan Motor Loosen the fixing screws Remove the fan and motor 4 Domestic Air Conditioner ...

Страница 65: ...Removal Procedure 4 Removal of Fan Motor Bracket and Partition Loosen the fixing screws and lift the fan motor bracket Remove the partition 5 Domestic Air Conditioner ...

Страница 66: ...Removal Procedure 5 Removal of Compressor and Heat Exchanger Remove the valve plate Remove the valves and the compressor Loosen the screws and remove the heat exchanger 3 6 Domestic Air Conditioner ...

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